hyperdoc -
Hyperdoc means mapping symbols to documentation URIs for libraries as well

hyperspec-lookup -
hyperspec-lookup is an ANSI Common Lisp documentation tool that gives the user an interface to mapping symbols to URLs for the Common Lisp Hyperspec and Common Lisp Object System (CLOS) MetaObject Protocol

LispDoc -
LispDoc is a documentation tool (probably somewhat OpenMCL specific) that automatically generates HTML documentation for all symbols exported from one or more packages from their documentation strings